In the dental hospital, those who dial teeth go to surgery; those who fill teeth go to internal medicine; those who have missing teeth go to restorative medicine; those who want to align their own teeth team and straighten out the effect of teeth like making up shells, all come to orthodontics. What kind of patients need to come to the orthodontic department to register? Let’s talk about what is orthodontics first. Orthodontics is also called orthodontics, the word Orthodontics is composed of the Greek words “orhos (orthodontic)”, “dons (teeth)” and ” Orthodontics is made up of the Greek words “orhos”, “dons” and “tics”, which in layman’s terms means to align the uneven teeth in the mouth. As early as 2,500 years ago, the ancient Greeks wrote about teeth and craniofacial deformities; in 900 A.D., doctors in Rome taught people to use their fingers to straighten misaligned teeth, making it the most primitive orthodontic technique. In the early 1900s, Dr. J. Mullett of Canada introduced orthodontics to China. Since the end of 1970s, modern orthodontics in China has developed rapidly and become an important branch of dental science, which is a science to correct the misalignment of teeth, to correct the abnormal relationship between upper and lower dental arches, as well as the incongruity between teeth, jaws and craniofacial relationship, and to study the etiology, diagnosis, prevention and correction of malocclusion. As mentioned at the beginning of this article, orthodontic treatment is to return a pair of beautiful and neat teeth and a bright and confident smile to everyone. How can you tell if your teeth need orthodontic treatment? There is a very convenient way: please look at the mirror, take a closer look at their own teeth, if there are the following circumstances, we should pay attention to: 1, grimacing teeth, teeth, remember the movie “Wong Fei Hung” in the “tooth rubbing Sue”? He is a typical “blunt tooth boy” – this is called “deep coverage” in orthodontics, clinical manifestations of the patient’s front teeth protrude outward, the lips can not be naturally closed; upper jaw bone obviously forward The upper jaw bone is obviously protruding forward or the lower jaw bone is short, and the chin appears to be shrunken behind the upper lip; the lip muscle is tense, and the face is “bird-shaped face” when viewed from the side. In contrast to the “bruxism”, the “bruxism” is the lower teeth, or “anticlinal”. “In this case, the lower front teeth are on the outside of the upper front teeth, while the upper front teeth should normally cover the lower front teeth. The more severe anticlusion is caused by overgrowth of the lower jaw or undergrowth of the upper jaw. In this case, the majority of the front teeth are retrognathic, the jaw is more prominent, and the face has a sunken “crescent” shape when viewed from the side of the body. These individuals may have close or distant relatives in the family with similar conditions. In addition, some children’s retrusion becomes more pronounced as they grow and develop. Therefore, if you have a child who is teething, please pay extra attention to the lateral shape of the baby’s face. 3, double jaw protrusion These patients show that the upper and lower dental arches and front teeth are protruding forward, the upper and lower lips can not be closed naturally, forming “open lips and teeth”, side observation can be seen in the lower part of the obvious protrusion, some people also have a large or small gap between the upper front teeth. When smiling, the gums are often exposed too much, which is very unattractive. 4, bite too deep and bite on the bite too deep in the medical known as deep overlap, manifested as the upper front teeth too much cover the lower front teeth, serious lower teeth completely covered by the upper teeth in the inside, from the front can not see the lower front teeth. In severe cases, the lower teeth are completely covered by the upper teeth and the lower front teeth cannot be seen from the front. Those with obvious deformities will feel unable to use their front teeth to bite off food. 5. Gaps in the teeth There is no gap between the teeth in a normal row of teeth, one next to the other. However, some people have gaps in their teeth. Most of these malformations are due to the small size of the teeth and the arch that holds the teeth is too large. There are also people who suffer from periodontal disease for a long time, and gaps in the front teeth also appear in the abnormal bite state, and such gaps will become larger and larger, making the four incisors spread apart. 6, misalignment This is the most common type of malocclusion, mainly manifested as misalignment of teeth, inside out or even overlap. The reason is that the dental arch can accommodate the teeth alignment “place” is not enough, some teeth have to squeeze together. Of course, there are many other manifestations of oral malocclusion, the above list is only the common symptoms, you can compare and diagnose yourself through the above information, if you have any questions, please consult your dentist in time.